Hard to say. My autox mk2 Supra is 2800lbs even with quater tank of gas and in race trim. Rear seats and hatch carpet pulled, carbon hood, NA 6m. Drivetrain is probably a similar weight. The beemer i6 will be lighter but the turbo stuff, tranny and diff will be heavier. Mk5 susp is probably lighter but I'm guessing the chassis is a touch heavier. So I'd say 2800lbs +/- 50lbs.